Free Image Alt Text Generator
Generate SEO-optimized, WCAG-compliant image alt text instantly with AI. Create descriptive, accessible alt text that improves search rankings and helps screen readers understand your images.
Image Alt Text Generator
Generate SEO-optimized, WCAG-compliant alt text for your images. Create accessible descriptions that improve search rankings and help screen readers.
Describe the core subject, action, and visible elements in the image.
Keywords will only be included if they fit naturally.
What is an Image Alt Text Generator?
An Image Alt Text Generator is an AI-powered tool that creates SEO-optimized, WCAG-compliant alternative text for images. It generates descriptive, accessible alt text that helps search engines understand your images and enables screen readers to describe visual content to visually impaired users.
Accessible & SEO-Friendly
Create alt text that works for everyone
Optimal Character Range
Why Image Alt Text Matters for SEO & Accessibility
Better Image SEO
Search engines use alt text to understand and index images, improving your visibility in image search results and overall page rankings.
Web Accessibility
Screen readers rely on alt text to describe images to visually impaired users, making your content accessible to everyone and meeting WCAG standards.
User Experience
Alt text displays when images fail to load, providing context to users and maintaining content quality even with slow connections or broken images.
How Does Image Alt Text Generator Work?
Describe Your Image
Provide a clear description of what's visible in the image, including subjects, actions, and important visual elements.
Add Keywords (Optional)
Include target SEO keywords that you want to incorporate naturally into the alt text for better search visibility.
AI Optimization
Advanced AI processes your input following WCAG guidelines and SEO best practices to generate optimal alt text.
Copy & Use
Review the generated alt text, check the character count, and copy it directly to your image's alt attribute.
Benefits of Using Image Alt Text Generator
Improved Image SEO
Boost your image search rankings with descriptive, keyword-optimized alt text that helps search engines understand and index your visual content.
WCAG Compliance
Meet web accessibility standards (WCAG 2.1) by providing descriptive alt text that enables screen readers to convey image content to visually impaired users.
Better User Experience
Ensure all users understand your images, even when they don't load properly or when using assistive technologies.
Save Time
Generate professional alt text in seconds instead of manually writing descriptions for every image on your website.
Natural Language
Create human-readable descriptions that avoid robotic phrases like 'image of' or 'picture of' while maintaining clarity and context.
Optimal Length
Automatically generate alt text within the ideal 70-120 character range, ensuring it's descriptive yet concise for best results.
Best Practices for Image Alt Text
Description Quality
- Describe what's actually visible in the image
- Include important details and context
- Mention colors, actions, or emotions when relevant
- Be specific but concise
SEO Optimization
- Include keywords naturally, not forced
- Avoid keyword stuffing
- Match alt text to page content
- Keep it under 125 characters
Accessibility
- Never start with 'image of' or 'picture of'
- Describe function for clickable images
- Skip decorative images (use empty alt)
- Test with screen readers
Common Alt Text Issues and Solutions
Too Generic
Common Causes:
- Vague image descriptions
- Missing important details
- Not describing visible elements
Solutions:
- Be specific about subjects and actions
- Include relevant visual details
- Describe what makes the image unique
- Add context when necessary
Keyword Stuffing
Common Causes:
- Forcing too many keywords
- Unnatural language
- Prioritizing SEO over accessibility
Solutions:
- Use keywords only when natural
- Focus on description first
- Maintain readability
- Balance SEO with accessibility
Too Long or Too Short
Common Causes:
- Over-describing simple images
- Under-describing complex images
- Not following character limits
Solutions:
- Aim for 70-120 characters
- Stay under 125 character maximum
- Include essential details only
- Remove unnecessary words
Poor Accessibility
Common Causes:
- Starting with 'image of' or 'picture of'
- Not describing image function
- Using technical jargon
Solutions:
- Start with the subject directly
- Describe what the image does if clickable
- Use clear, simple language
- Follow WCAG 2.1 guidelines
Frequently Asked Questions About Image Alt Text
What is the ideal length for alt text?
The ideal length is 70-120 characters, with a maximum of 125 characters. This range provides enough detail for screen readers and search engines while remaining concise and easy to process.
Should I include keywords in alt text?
Yes, but only if they fit naturally. Keywords should be relevant to the image and flow naturally in the description. Never force keywords or stuff them unnaturally, as this hurts both SEO and accessibility.
Do I need alt text for decorative images?
No. Decorative images that don't add meaningful content should have empty alt attributes (alt='') so screen readers skip them. Only images that convey information need descriptive alt text.
Should I start alt text with 'image of' or 'picture of'?
No. Screen readers already announce that it's an image, so starting with 'image of' is redundant. Start directly with the subject or description for better accessibility and user experience.
How does alt text help SEO?
Alt text helps search engines understand and index your images, improving visibility in image search results. It also provides context for the page content, contributing to overall page SEO and rankings.
Can I use the same alt text for multiple images?
Only if the images are truly identical. Each unique image should have unique alt text that accurately describes its specific content. Duplicate alt text can confuse users and search engines.
What if my image has text in it?
Include the text from the image in your alt text, along with a brief description of the image itself. For example: 'Infographic showing 5 SEO tips with blue and white design' would include both the content and visual description.
Is alt text required for accessibility compliance?
Yes. WCAG 2.1 Level A requires all meaningful images to have appropriate alt text. This is essential for making your website accessible to visually impaired users and meeting legal accessibility requirements.